﻿/* Copyright (c) 2010 EPiServer AB
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
 * documentation files (the "Software"), to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and
 * to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
 * THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
using System;
using System.Web.UI;
using EPiServer.Core;
using EPiServer.Web.WebControls;

namespace EPiServer.Municipality.Web.UI.WebControls {
    public class Image : Property {
        /* *******************************************************************
         *  Properties 
         * *******************************************************************/
        #region protected PageData PageItem
        /// <summary>
        /// Gets the PageItem of the LinkToList
        /// </summary>
        /// <value></value>
        protected PageData PageItem {
            get {
                if (!PageReference.IsNullOrEmpty(PageLink))
                    return DataFactory.Instance.GetPage(PageLink);
                if (!string.IsNullOrEmpty(PageLinkProperty)) {
                    var reference = ((PageBase)Page).CurrentPage[PageLinkProperty] as PageReference;
                    if (!PageReference.IsNullOrEmpty(reference)) {
                        return DataFactory.Instance.GetPage(reference);
                    }
                }
                return null;
            }
        }
        #endregion

        /* *******************************************************************
        *  Methods 
        * *******************************************************************/
        #region protected override void Render(HtmlTextWriter output)
        /// <summary>
        /// 
        /// </summary>
        /// <param name="output"></param>
        protected override void Render(HtmlTextWriter output) {
            if (InnerProperty != null) {
                EnsurePropertyControlsCreated();
                if (InnerProperty.Value != null && PageItem != null) {
                    output.WriteBeginTag("img");
                    output.WriteAttribute("src", (string)PageItem[PropertyName]) ;
                    output.WriteAttribute("alt", string.Empty);
                    output.Write(HtmlTextWriter.SelfClosingTagEnd);
                }
            } else if (string.IsNullOrEmpty(PropertyName.Trim())) {
                output.WriteLine("[Error: PropertyName is not set.]");
            } else if (((PageBase)Page).CurrentPage == null) {
                if (DisplayMissingMessage)
                    output.WriteLine("[Error: Property is contained in a page/control/template that does not have a current page.]");
            } else if (((PageBase)Page).CurrentPage.Property[PropertyName] == null) {
                if (DisplayMissingMessage) {
                    output.WriteLine("[Error: No property \"{0}\".]", PropertyName);
                }
            } else
                output.WriteLine("[Error: Unknown error.]");
        }
        #endregion
    }
}